Macworld Expo, San Francisco may see Apple launch a seismic shock across the computer industry.

Citing "reliable sources", ThinkSecret declares the company will indeed launch an Intel-powered iBook there - and that these will be available at significantly lower prices, perhaps as much as $200 less than the current models.

iBooks cost from $999 in the US. Reducing prices by a further $200 will pitch the product against offerings from the likes of Dell, HP, Sony and Gateway. The price also appears designed to further attract Windows users who are looking for decent alternatives to their bug-prone systems.

The report - which Macworld UK cannot verify - adds that Apple will use Intel's Yonah processor.

Apple does not comment on rumour or speculation regarding unannounced products.